Installing the Hardware
48
Connecting to a chartplotter
The UM455 provides a standard NMEA0183 GPS output that you can connect to a
chartplotter. When it receives another boat’s position data in a DSC call, the radio
sends the position data to the chartplotter so you can see the location:
1. Disconnect the
accessory cable
from the accessory connection on the radio.
2. Connect the BROWN wire of the
accessory cable
to the NEGATIVE (-) wire of
your chartplotter’s NMEA data INPUT.
3. Connect the WHITE wire of the
accessory cable
to the POSITIVE (+) wire of
your chartplotter’s NMEA data INPUT
4. Be certain all wire connections are secure and that all open wires are adequately
covered.
5. If you are finished connecting all external accessories, line up the arrows on the
side of the
accessory cable
and connector and connect the
accessory cable
to
the
accessory connector
on the back of the UM455.
NOTE: To extend the life of the radio, use waterproof tape to seal electrical
connections.
Connecting to an external speaker
You can use an external speaker to monitor the radio from a different part of your
boat or in a noisy environment. If you adjust the
VOLUME-PWR
knob on the radio, it will
also adjust the external speaker volume.
The UM455 supports an external speaker with the following specifications:
•
Minimum impedance of 4 Ohms
•
Minimum power handling of 10 Watts